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NPWR 8-K: SEC filing

Filed with the SEC on · accession 0001104659-26-124814

NPWR filed a 8-K (current report) with the SEC on Nov 10, 2026. Net Power Inc.'s Board approved an amendment to the stock option agreement held by President and COO Marc Horstman, extending post-termination exercise periods and allowing continued vesting after certain terminations.

Summary of the filing

Net Power Inc.'s Board approved an amendment to the stock option agreement held by President and COO Marc Horstman, extending post-termination exercise periods and allowing continued vesting after certain terminations. The amendment does not change the number of shares, exercise price, vesting schedule, or expiration date of the option.

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Key details

Shares subject to Marc Horstman's stock option$240K
Exercise price per share of Marc Horstman's stock option$2
RegistrantNet Power Inc.
President and chief operating officerMarc Horstman
Chief executive officerDaniel J. Rice IV

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Frequently asked questions

What did NPWR file with the SEC on Nov 10, 2026?

NPWR filed a 8-K (SEC filing). Net Power Inc.'s Board approved an amendment to the stock option agreement held by President and COO Marc Horstman, extending post-termination exercise periods and allowing continued vesting after certain terminations. The amendment does not change the number of shares, exercise price, vesting schedule, or expiration date of the option.

How do I read a 8-K?

A report of a major event, filed within four business days: results, deals, leadership changes, bankruptcy and more. The "Item" number tells you the topic (e.g. 2.02 results, 5.02 executive change, 1.01 new agreement, 1.03 bankruptcy). Exhibits (99.1 press release) usually hold the details.

Why are SEC filings important?

Public companies must tell the SEC about anything that can change their value — results, leadership changes, big deals, new shares, bankruptcy. Filings are the official source, often before the news. A 8-K (current report): A report of a major event, filed within four business days: results, deals, leadership changes, bankruptcy and more.

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